Harrow.



No. 872,957. PATENTED DEC. 3, 190 D 1?. Mom & J. A. DUVANEL.

' HAR'ROW.

"APPLICATION FILED JULY 1, 1907.

2 SHEETS-SHEET 1.

. awwewbom Witnesses I $402??? 39 'NO. 872,957. PATENTED DEC. s, 1907.D. P. 01111 & J. A. DUVANEL. 'HARROW.

APPLICATION FILED JULY 1. 19'07.

' 2 SHEETS-SHEET 2 gnaw/n55 rrnn earns PATEN are.

cinnamon PETER MOHR AND JOHN AUGUSTE DUVANEL, or MAOKINAW, ILLINOIS. I

e es Specification of Letters Patent.

Patented'Dec. '3, i907.

Applicationfiled July 1119071 Serial No. 381.695-

To all whom it may concern:

Be it known that we, DIEDERIOH FETER Mona and J om; AUoUsTE DUVANEL,citizens of the United States, residing at Mackinaw, in the county ofTazewell and State of 'nois, have invented certain new and usefulImprovements-in Harrows, of which the following is a specification.

This invention relates more'especially to improved means for theattachment of a clod. crusher or pulverlzer to a disk harrow or wherebythe pulverizer may be allowed toengage the ground as in operation orsupported in an elevated position out of engagement with the ground whennot in operation.

Further objects of the said invention are the providing of improvedmeans for supporting the pulverizer frame and the providmg of anadjustable Wheel support to compensate for the adjustable attac ment tothe disk harrow.

With the foregoing objects in view the said invention consists in thenovel combination and arrangement of parts herein shown and describedand more particularly pointed out in the accompanying claims.

in order to more fully describe the said invention reference will be hadto the accompanying drawings, which form apart of the specification,andwherein:

1 Figure 1, is a top plan view of a combined disk and tooth harrowembodying one form of the said invention; Fig. 2, a side elevationthereof with tooth barrow in an operative position; Fig. 3, a similarview showing the tooth barrow in the raised position, and Fig. 4, anenlarged detail fragmentary perspective view of the mechanism forattaching the tooth harrow to the disk harrow.

teferring' to the accompanying drawings,

1, represents a disk harrow or spader of any d sired construction, and2, 23, supporting arms for the attachmentoi the tooth harrow si htion tothe disk barrow, said arms being made last to the disk barrow in anysuitable way as for example by being bolted to the row of disk harrowframe, as at 4, 4. In the form illustrated, these arms extend to eachside of the'harrow along the to of the cross piece 5 of the harrowframe, an thence backward to form the side arms 6 and 7 The rear end. ofeach of these arms 6 [and 7 terminates in a figment 8 having a centralslot ewith no willlheheinafter more fully appear.

ivoted to arms 6 and? respectivel at suitablepoints, 11 and l 2, forward0 the segments 8, ar'etwo arms 13, 14, each of which. is provided with"a transversely extendin head 15 having therein a transverse 101GS 16',the object of which will presently more fully appearf These arms 13and14 are angularly adjustable on their pivots 11 and 12 respectively, andfor the purpose of holding them in'adjustment in several of saidpositions, each is provided with clampclamping plate 17, adapted tostraddle its respective arm and provided with 'a nut and bolt connection18 whereby the said'elam ing plates are held in efigagement with t eouter faces of the segments 8 adjacent thereto, the said bolts passingthrough the slots 9 in said segments. For providing against slipping ofthe clamping plates 17, eachis toothed as at 19 (see Fig. 4) toengagethe serrations or notches 10, on the segments 8.

The arms 13 and 14 constitute members of two articulated arms forming anadjustable connection between the supporting means on the disk harrow,and the tooth harrow. The other members of these articulated arms con Ies 0r serrations 10 on one of the fi -.1BS of each ofs'aid segments, theobject of which ing means comprising, in the case shown, a

sist each of pairs of bin ed extensions or arms 20, 21 and 22, 23. T earms 13fand 14 are hinged res ectively between arms 20 and 21, and 22and 23 by means of ivots 24 and 25, the ends of the arms 13 and 14provided with the perforated heads 15 extendin Well along between therespective pairs oi said hinged extension arms. These arms 20, 21, and22, 23 may be held in di l'erent )OSltiOIlS of angular adjustment bymeans oi pins 26 adapted to extend transversely through said extensionsand through holes 16. 1

The hinged arms 20, 21, and 22, 23, as shown, extend along the sides'ofthe arms 13 and 14 and beyond the headed ends thereof. At their endswhich thus extend beyond the ends of the arms 13 and 14, the pairs ofhinged arms 20, 21, and 22, 23 are made fast respectively in anysuitable way as by bolts 27, to side bars 28 and 29 which form supportsfor a harrow frame 30 having a plurality of tooth beams 31 mountedthereon. These tooth beams are shown mounted. for rocking motion by. thelever 32 acting through the link connection. 33, the said mounting ofthe said heams and the means shown. for rocking: them, however, is oldin the art and is not herein claimed.

The harrow frame 30 is attached to the side bars 28 and 29 by meansofl'our lugs on extensions 3 1, one at each corner of the said frame.The lugs normally rest upon the side bars 28,2 9 in vertical guide Ways35 formed in said oars near one end of each, and the said. frame is heldagainst movement upward under the tension of coil springs 36, onemounted. in. each of said Vertical Ways 35 above the lug 34 therein.Retaining pins 37 assing downward through the springs 36, lugs 34. and.side bars 28, 29, act to hold said parts together.

The side bars and 29 are connected in the rear by means of a bar38'provided with an extension 39, having an eye 40 through which passesa bar 41 connected to a hiiurcated racket 42 in which is journaled awheel 43 adapted to run on the ground when the harrow is in operation.By means of a pin 44 passin through the extension 39 and a series of hocs 44 in the bar 41, the eleva tion of the harrow frame with respect tothe wheel may be varied.

From the foregoing description it will be readily seen that theadjustable connection between the arms 6 and 7 and the pivoted arms 13and 1e will ermit of a variation in the height at which the tooth harrowmay be supported, thus regulating this height to con form to the heightof the disks of the disk harrow. If it is desired to support the tooth'harrow in a slanting position or to raise it entirely from the groundas shown in Fig. 3,

this may be done by varying the angular adjustment of the hinged arms20, 21, and 22, 23. In the raised position shown in Fig. 3, the toothharrow may he carried attached to the disk narrow Without liabilityto-run up against stumps or other obstacles on ground. The attachment ofthe wheel43 to the pulverizer also permits of an adjustment of the rearend of the pulverizer to compe'n. sate for the adjustment at the forwardend thereof.

While we have herein shown only one specific form of our said inventionwe may modify the same without departing from the spirit of the same.

Having thus described ourinvention what we claim is 1. Means for theconnection of one barrow section with another, comprising supportingmeans adapted to be connected toone of said harrow sections, armspivoted on opposite eraser sides of said harrow section on said supporting means for angular adios tment vertically, and hinged extensions onsaid. arms respe'c tively, said extensions connected to the otherlfilfiil'OW section.

. 2. The combination. with supporting arms for connection to a harrow,of pivoted tosaid supporting arms for angular adjust ment, clam ingmeans to hold said pivoted arms in at justment, extensions hinged onsaid arms for angular,- adjustmentand provided. with means to hold. themin. adjustmerit, and a barrow connected to said hinged extensions, thesaid. hinged extensions permittingthe elevation from the ground of theharrow connected thereto and. ti tion of the same in the elevated postion.

3. The combination with. sinpporting arms for connection to a harrow, ofarms pivoted to said supporting arms for angular adjustment, clampingmeans to hold said pivoted arms in adjustment, extensions hinged on saidarms for angular adjustment and pro vided with means to hold them inadjustment, a harrow rigidly connected. to said hinged extensions, and avertically adjust able supporting wheel connected to the rear of saidlast named harrow.

4. The combination with a disk harrow, of supporting arms attachedthereto, arms pivoted to said supporting arms for angular adjustment,clamping means acting to hold said pivoted armsin positions ofadjustment,

arms pivoted on each of said second named arnisiand' formingextensions'thereto, clamping means; to hold said extensions in angularadjustment, harrow side bars rigidly connectcd respectively to said armextensions, tooth harrow beams supported on said side bars, a rear frameportion connecting said side bars, and" a vertically adjustable wheelconnected to said rear frame portion.

5. In a harrow, the combination with a harrow section comprising aframe, a plurality of toothed bars mounted. in said frame, side bars inwhich said frame is mounted for movement vertically relative thereto,springs arrangei'l to oppose said movement, a second harrow section, andadjustable means con necting one of said harrow sections with the other,said means comprising adjusting piv oted arms, ado ted to permit of theraising and lowering 0 said first named harrow sick) tion with respectto the second named sc DlEDERICH PETER ldOHR. JOHN AUGUSTE DUVANEL.

Witnesses:

Gasser. Hanson, San: WELTY.

1e rcten lle

